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Raviteja


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Active since 2011

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I am working on DSP. I use to design my algorithms through Matlab. I like and love to use Matlab. Easy to program , visualize, debug mostly it has good support though Matlab answers/file exchange"
Professional Interests: Signal Processing, Speech Signal Processing

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Question


Loading ECG .dat file into matlab
Hello, I want to load ECG data which consist s0010_re.dat file name. I want to load into a variabl ECG_wave=load('s0010_r...

nästan 8 år ago | 1 answer | 0

1

answer

Question


Drawing a line
I want to draw a line like this <http://www.flickr.com/photos/75243597@N03/6780413880/> where c=0; The line have to pas...

mer än 12 år ago | 1 answer | 0

1

answer

Question


Drawing slope
Can we draw a line with the slope vector m =[-0.74586; -0.6661] if yes how ?

mer än 12 år ago | 1 answer | 0

1

answer

Question


vector element extraction
>> S=[8 4 1 6 7 2 1 5 0 5 1]; >> C=[1 0 5 8]; I want to remove all the elements in S which are in C. In otherwords, I w...

nästan 13 år ago | 1 answer | 0

1

answer

Question


Unrepeated random numbers
I have a vector S >> S=[1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10]; I want to randomly pic 5 elements which are unrepeate...

nästan 13 år ago | 1 answer | 0

1

answer

Question


Drawing a discrimination line
Hello,Please help me.. I want to understand how "classify" funtion works in matlab. So I have written a code below. load...

nästan 13 år ago | 0 answers | 0

0

answers

Question


Plot Eigen Vectors
>> covX=[3.1163 1.2956; 1.2956 0.5810]; >> [Evec Eval]=eig(covX); for this how to plot Eigen vectors ?

nästan 13 år ago | 2 answers | 0

2

answers

Question


making integers in a column
In a program I have following result for 'Check' variable >>Check=[testing_ind' ldaClass All_data(testing_ind,:)]; ...

nästan 13 år ago | 1 answer | 0

1

answer

Question


Saving with quotes.
I have written code as below HC_Label=[]; for i1=1:5 HC_Label=['HC'; HC_Label]; end Out is like this ...

nästan 13 år ago | 1 answer | 0

1

answer

Question


png to eps conversion
I want to convert an image .png to .eps converstion.. Can you please suggest me the code.. I=imread('rp_noise.png'); imwrit...

ungefär 13 år ago | 3 answers | 0

3

answers

Question


saving workin space variable
I executed my file which consists 20 variables (stored in the workspace after execution). I want to save 1 variable called myva...

ungefär 13 år ago | 1 answer | 0

1

answer

Question


Matlab workspace
How can I know, the total variables size stored in matlab? I mean, total memory taken by workspace?

ungefär 13 år ago | 2 answers | 0

2

answers

Question


Shuffle matrix elements
Hey guys, I want to shuffle a 3x3 matrix (which consist elements within 1:9 unrepeated). So that I have written a very strange c...

ungefär 13 år ago | 3 answers | 1

3

answers

Answered
regarding mini project
I have done following 2 small projects (Image processing) using matlab.. 1. Cup to disk ratio of a fundus images using matlab...

ungefär 13 år ago | 2

Question


Merge array to a number
I want to merge an array to a number. i.e., if >>x=1:5; do some operation on x and get the result like >>y=12345 ...

ungefär 13 år ago | 3 answers | 0

3

answers

Question


create as built in functions
I have bunch of functions related to my applications and all are .m files. I don't want to copy each function in current working...

ungefär 13 år ago | 2 answers | 0

2

answers

Question


FIR1 basic question
Hello Please help in FIR1 filtering. I clearly mentioned in the code about what I want to do. clear all clc fm=100; ...

ungefär 13 år ago | 1 answer | 0

1

answer

Answered
Plot Problem
x=.1:.1:4*pi; y=(sin(pi*x))./(pi*x); plot(x,y) Is this working?

ungefär 13 år ago | 0

Question


Plotting Eigen vectors
I have a real symetric matrix A >> A=[1 7 3;7 4 -5;3 -5 6]; I found its eigen vectors >> [Evec,Eval]=eig(A); I want to p...

ungefär 13 år ago | 0 answers | 0

0

answers

Question


Multivariate Guassian Distribution
* I want to learn Multivariate Gussian distribution so I written the following code.* I am implementing following formula <...

ungefär 13 år ago | 2 answers | 1

2

answers

Answered
Good programming practice...
I got good help from matlab datasheets for matlab programming tips http://www.mathworks.in/help/pdf_doc/matlab/programming_...

ungefär 13 år ago | 0

Question


Good programming practice...
Hello all, Please explain good MATLAB programming practice methods. It will help to the guys who are new to programming like me...

ungefär 13 år ago | 16 answers | 7

16

answers

Question


How to check efficiency of my code?
I heard, the command true is faster than logical(1) This I got after reading one answer in this answers forum. In general how t...

ungefär 13 år ago | 2 answers | 0

2

answers

Question


matrix manipulation
>> A A = 7 0 6 9 8 7 6 9 7 >> B B = 3 ...

ungefär 13 år ago | 1 answer | 0

1

answer

Question


reading multiple images - strcat
In a folder I have 50 images of 5 subjects 10 each. (all are .jpg format) I named them as sub1 (1) sub1 (2) ... ....

ungefär 13 år ago | 2 answers | 0

2

answers

Question


biplot understanding
>> x=[1 2 3 4 5 6;1 2 3 4 5 6]' x = 1 1 2 2 3 3 4 4 5 5...

ungefär 13 år ago | 1 answer | 0

1

answer

Question


random number within a rwo vector
I have a row vector say >> A A =[ -29 -17 -11 -10 -8 -8 -7 -2 -1 3 3 3 8 13 14] I want to randomly gen...

ungefär 13 år ago | 1 answer | 0

1

answer

Question


PCA values
I have written following code to learn about PCA. clear all clc load hald hald=ingredients; [m n]=size(hald); ...

ungefär 13 år ago | 1 answer | 0

1

answer

Question


matlab preloaded 'load' files
matlab consist some preloaded load files for example >>load cities >>load hald >>load moore I want to know all other ...

ungefär 13 år ago | 2 answers | 0

2

answers

Question


sort a matrix depending on first row
I have a matrix B >> B B = 5.0000 1.0000 6.0000 3.0000 0.6076 0.4943 0.1097 0.4754 ...

ungefär 13 år ago | 2 answers | 3

2

answers

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